baber/WOPTO huggingface dataset:
Patent CA-1159932-A (CA)
Inventor: CHARAS PHILIPPE M
IPC: G01S13/78
Filed: 1980-12-10
Granted: 1984-01-03
Abstract: ABSTRACT OF THE DISCLOSURE           A method of preventing a radar beacon from responding to received pulses from a vessel which originate from the side lobes of the vessel antenna.  The carrier frequency of the radar signal pulses to and received by the beacon is measured and a value of this frequency is stored when the amplitudes of the signal pulses exceed a certain high threshold level (Th).  If signals after that are received which exceed a low threshold level (Tl) (but not the high) the carrier frequency of these is measured and the corresponding value is stored.  Measuring two subsequent and equal carrier frequencies is consid-ered as a criterion that a responding signal from the beacon responding to the second received signal should not be transmitted.
Patent CA-1143904-A (CA)
Inventor: GABBAY SHLOMO
IPC: A61F2/24
Filed: 1980-12-12
Granted: 1983-04-05
Abstract: GAB-3.                    A PROSTHETIC HEART VALVE     ABSTRACT OF THE INVENTION A prosthetic heart valve consists of a tubular membrane having a flexible generally circular inlet end adapted to be attached to the annulus of a heart with one side of the tube held to the heart cavity as by attachment to the papillary muscle while the other side of the tube is formed as an extended single flap adapted to move toward and away from the membrane on the attached side to provide a closed or open valve at the outlet end.
Patent CA-1186668-A (CA)
Inventor: CALCAGNO KENNETH H
IPC: H01F41/06
Filed: 1980-12-18
Granted: 1985-05-07
Abstract: ABSTRACT OF THE INVENTION An apparatus is claimed for maintaining the relative position between wire being fed onto a spool and wire wound about the spool for forming a coil comprising guide means for guiding the wire onto the spool; a sensing arm movably responsive to shifting of the wire upon winding thereof onto the spool and displacing means for synchronously displacing the guide means dependent upon the position of the wire wound about the spool.  The displacing means comprises, preferrably, a rotary hydraulic servo-valve, a shaft which connects the sensing arm and the servo-valve, and a hydraulic cylinder secured to the servo-valve, shiftably movable relative to the spool, responsive to movement of the sensing arm, such that as the angle between the wire being fed onto the spool and the wire wound about the spool changes, the sensing arm is displaced thereby actuating said displacing means and causing movement of said guide means thereby re-establishing the relative position between the wire being fed onto the spool and wire wound about the spool.
Patent CA-1154596-A (CA)
Inventor: BRAUN ALBERT
IPC: C21C7/076
Filed: 1980-12-24
Granted: 1983-10-04
Abstract: DESULFURIZING AGENT AND PROCESS FOR ITS MANUFACTURE     ABSTRACT OF THE DISCLOSURE    The invention relates to agents for the de-sulfurization of metal melts, especially of steel and crude iron melts, based on mixtures of CaC2/ CaO crystals produced in the fused mass. A portion of the CaO in the crystal mixture is hydrated to form Ca(OH)2. A process for the manufacture of these agents is also described.
Patent CA-1174285-A (CA)
Inventor: DELFINO MICHELANGELO
IPC: H01L21/268
Filed: 1981-01-28
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE A tunable CO2 gas laser is used to selectively heat various glass materials or silicon-oxygen bonded materials to elevated temperatures while maintaining an active device region at relatively low temperatures, to, for example, induce densification and/or flow of the glass materials or silicon-oxygen bonded materials to round off sharp edges and stops.
Patent CA-1158623-A (CA)
Inventor: SUMMERS ANTHONY C
IPC: F16K1/226
Filed: 1981-03-06
Granted: 1983-12-13
Abstract: ABSTRACT OF THE DISCLOSURE.             Disclosed is a butterfly valve having a seat, when viewed in cross-section, of generally U-shaped configuration, and an insert configured with appropriately shaped cooperating surfaces.  The sealing effectiveness of the valve is enhanced by line pressure regardless of the direction of application of such pressure, the torque characteristics of the valve are relatively low, the ability to withstand temperature cycles is good, and the seat is restrained from destructive interference with the disc.
Patent CA-1171255-A (CA)
Inventor: UNDIN HANS
IPC: B25B7/12
Filed: 1981-03-18
Granted: 1984-07-24
Abstract: TOOL HAVING TWO WORKING JAWS   ABSTRACT OF THE DISCLOSURE            A tool particularly suitable for use in crimping includes two arm members and a pair of working jaws each supported on a different one of the arm members.  A drive arrangement such as a pair of handles is connected to the arm members for moving the arm members relative to each other between open and closed positions.  The drive arrangement, arm members and working jaws provide two force transmitting paths each extending between a different point on the drive arrangement where an external operating force is applied, and a different one of the working jaws whereat the operating force is transferred to an article to be worked on by the tool.  At least one pivotal connection is provided, in a force transmitting path,between any two members of the group including the drive arrangement, the arm members and the working jaws.  The pivotal connection includes at least one pivot member and a bearing member for engaging the pivot member.  The bearing member is arranged to deform resiliently when the operating force is transferred to the bearing member by the pivot member.  Preferably, at least one of the arm members is formed by two spaced apart, parallel arm plates, and a working jaw extends into the region between the plates.  The plates and working jaw between them have at least two sets of aligned openings, and a retaining member which may be of resilient material is closely fitted in each set of openings to fix the working jaw to the arm member plates.
Patent CA-1161361-A (CA)
Inventor: KLOTHEN IRVING
IPC: A23K1/18
Filed: 1981-03-27
Granted: 1984-01-31
Abstract: ABSTRACT The invention is a process for the preparation of animal reed supplements containing various, drugs or drug combinations, wherein uniformly potent particles of controlled particle size are obtained by the process, and the particles have been imparted a degree of hardness, sufficient to withstand shattering abrasion or crumbling while in storage or being blended with feed, and thereby to minimize the retention of said drugs by the processing equipment.  The invention also relates to a medicated animal feed supplement comprising a mixture of tetracycline antibiotics, sulfa drugs, penicillin antibiotics and whey solids.
Patent CA-1149897-A (CA)
Inventor: NAROZNY RONALD S
IPC: H01R12/38
Filed: 1981-03-31
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE          A connector for ground terminating flat multi-conductor cable includes first and second sets of insula-tion-piercing contacts in a support body, first set contacts being separately accessible outside the support body and second set contacts being accessible in unison outside the support body.  All contacts share common attitude in the support body and have identical insulation piercing portions.
Patent CA-1146722-A (CA)
Inventor: CAMERON GORDON M
IPC: C01B25/234
Filed: 1981-04-10
Granted: 1983-05-24
Abstract: ABSTRACT OF THE DISCLOSURE          In conventional processes for manufacturing phosphoric acid, suplhuric acid is reacted with phosphate rock to produce weak phosphoric acid which is concentrated using steam from the associated sulphuric acid manufacturing operation.  Low grade heat from the absorbers and drier of the sulphuric acid manufacturing plant has beer. wasted. According to the invention waste heat from the drier and one or more absorbers of the sulphuric acid manufacturing plant is used in all the evaporators of the phosphoric acid plant.  The evaporators all operate at low pressures and their heaters are arranged in series, to enable the heat to be used at the relatively low temperatures avail-able.  The valuable steam is thus freed for other uses.
Patent CA-1184761-A (CA)
Inventor: HULTEN GOERAN
IPC: C10L5/44
Filed: 1981-05-13
Granted: 1985-04-02
Abstract: ABSTRACT OF THE DISCLOSURE           Fuel particularly useful in cyclone burners is prepared by a process in which in the first step wood is ground to a powder with a particle size of up to about 15 mm.  The resultant powder is dried to a moisture content of maximum 15% (preferably maximum about 10%), and this dried powder is ground in a second step to an average par-ticle size of between about 100-900 µm,  (preferably maxi-mum 700 µm).  This fuel, with an average particle size of below 900 µm and with a moisture content of maximum 8%, can be used as fuel in steam or hot water boilers, hot air boilers, internal combustion engines, and the like.
Patent CA-1170233-A (CA)
Inventor: REHFELD FREDERICK L J
IPC: B01D33/00
Filed: 1981-05-26
Granted: 1984-07-03
Abstract: AIR PUMP WITH CENTRIFUGAL FILTER          Abstract of the disclosure An air pump, adapted to supply air to an engine exhaust system, has a rotating filter element which centrifuges dust and water from the air flowing into the pump to assure adequate pump life.  The filter element has a cylindrical extension which overlies and is closely adjacent to a rim on the pump housing and is effective to inhibit passage of foreign material between the filter element and the rim.
Patent CA-1166750-A (CA)
Inventor: LIPTAY-WAGNER NICHOLAS
IPC: B07C5/10
Filed: 1981-06-08
Granted: 1984-05-01
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus are provided for analyzing a light pattern produced on a photodetector array wherein a signal from the array is filtered by a low pass filter and then differentiated by at least one differentiator to obtain the first or second derivative of a point or points in the pattern. A zero crossing detector detects the point of zero crossing in the differen-tiated signal and a timer times this point to obtain the position of the point(s) in the pattern.  This technique can be used with back-lit illumina-tion of edge images as well as with diffraction fringes and triangulation spots, among other uses.  Further techniques using photodetector arrays are also disclosed.
Patent CA-1170356-A (CA)
Inventor: KAIMAI HIROYUKI
IPC: G11B15/18
Filed: 1981-06-22
Granted: 1984-07-03
Abstract: ABSTRACT OF THE DISCLOSURE     In an apparatus which reproduces video signals from oblique tracks successively formed on a tape, the tape is intermittently moved by a tape capstan motor being driven by a motor drive pulse which is generated by an amount corresponding to a predetermined number of said tracks at every predetermined time interval for slow-motion reproduction of the recorded video signals.  A pulse-width or amplitude of the motor drive pulse is controlled in accordance with the slow-motion speed.
Patent CA-1176040-A (CA)
Inventor: KELLY JOHN W
IPC: B21D39/06
Filed: 1981-06-23
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           A tube is inserted in a bore in a tube sheet, the tube having an outside diameter slightly smaller than the bore.  Hydraulic pressure is applied to the tube internally to expand it radially throughout a pressure zone that extends at least up to one end of the bore.  The pressure is confined between two axially spaced seals that encircle a mandrel and are engagable with the inner surface of the tube.  The mandrel and seals are then shifted to relocate the pressure zone so that it does not reach the end, and increased pressure is applied to produce a firmer contact between the outside of the tube and the bore.  Any crevices between the tube and the tube sheet in which corrosion would be likely to occur are thus eliminated.  The invention is particularly suitable for use in connection with the heat exchangers of nuclear plants.
Patent CA-1163930-A (CA)
Inventor: FREMONT HENRY A
IPC: B01D33/044
Filed: 1981-07-23
Granted: 1984-03-20
Abstract: APPARATUS AND METHOD FOR REMOVING   SUSPENDED SOLIDS FROM A STREAM                   ABSTRACT OF THE DISCLOSURE         An apparatus and method for filtering and classi-fying waste or process streams into three product streams using a polymeric net belt to drive a filter drum and hydrophobic polymeric filter element thereon.  A matte of solids is doctored from the belt to provide a first product stream.  A roller mounted on a fluid cylinder driven pivoted arm compresses the filter element to provide a smaller suspended solids stream for collection in a trough inside the drum.  This second product stream is removed axially from the trough by means of a pump.  A third clarified or effluent stream is produced and collected in the drum as the stream passes through the foam filter element.  This third stream is removed axially in the direction opposite of said second stream.  A shower keeps the foam in the compressed area water filled to prevent vapor lock or gas blockage in the cellular foam filter.
Patent CA-1189708-A (CA)
Inventor: FINN LYLE D
IPC: F16L1/19
Filed: 1981-08-20
Granted: 1985-07-02
Abstract: A B S T R A C T   A method and apparatus for installing a pipeline riser through a J-tube at a spud can-founded, compliant, offshore platform are disclosed.  The J-tube is mounted on the platform above the maximum expected mudline.  An upper longitudinal section of the J-tube passes through guide rings on the platform while a lower longitudinal section is maintained free of the platform.  After platform settlement, the J-tube is lowered to an elevation near the actual mudline.  During riser installation through the J-tube, a lower end of the J-tube is restrained from lateral movement by a latch attached to the platform.  Before production operations, the lower end is released from the latch so that flexibility of the J-tube accommodates movement of the platform.
Patent CA-1138509-A (CA)
Inventor: MILLS EDWIN R
IPC: H05B3/00
Filed: 1981-08-31
Granted: 1982-12-28
Abstract: ELECTRICAL HEATING APPARATUS WITH      OVERHEATING PROTECTION Abstract of the Disclosure An electrical heating apparatus, and par-ticularly a bedcover preferably in the form of a blanket, protected against an overheating condition and in which electrical current flow through a heating element is controlled by a pair of gate controlled bidirectional semiconductor switches electrically connected to one another in series and in front-to-front orientation.  The gates of the semiconductor switches are connected through a temperature sensitive capacitor which triggers the semi-conductor switches from a conductive to a nonconductive state in response to the sensing of an overheating condition.
Patent CA-1184109-A (CA)
Inventor: ROWELL FRANK J
IPC: B31B19/84
Filed: 1981-10-08
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE       The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag.   A second bag may be provided within the first bag.     The invention includes a machine for making the containers continuously from sheets of material.
Patent CA-1219553-A (CA)
Title: Electrolytic cell having a composite electrode- membrane structure
Inventor: KADIJA IGOR V
IPC: C25B1/46
Filed: 1981-10-13
Granted: 1987-03-24
Abstract: AN ELECTROLYTIC CELL HAVING A COMPOSITE   ELECTRODE-MEMBRANE STRUCTURE            ABSTRACT OF THE DISCLOSURE   A novel  electrolytic cell for the electrolysis of aqueous solutions of alkali metal chlorides which comprises a cell housing containing a pair of electrodes of opposite polarity.  A hydraulically impermeable ion exchange membrane is positioned between and separates the pair of electrodes.  At least one of the electrodes comprises a reticulate electrode where the reticulate electrode is in contact with the membrane.  Means are provided for applying an electric potential to the electrodes.          The reticulate electrode in contact with the hydraulically impermeable membrane forms a composite structure which substantially eliminates the gap between the electrode and the membrane.          Employing the novel electrolytic cells for the electrolysis of alkali metal halide solutions results is reduced cell voltages and electrical power consumption.  The reticulate electrodes used allow significant reductions in material costs and have increased surface area.
Patent CA-1175583-A (CA)
Inventor: IIJIMA SHIGERU
IPC: H01L29/167
Filed: 1981-10-14
Granted: 1984-10-02
Abstract: ABSTRACT OF THE DISCLOSURE Silicon thin film is composed of primarily silicon atoms, at least one element selected from a group including fluorine, chlorine, bromine, iodine and hydrogen, and impurity element, wherein microcrystalline grains are interspersed in the amorphous layer.          The thin film is produced by a method of pro-ducing a silicon thin film on a substrate under the plasma atmosphere using as a raw material any one of silane (SiH4) or halogenated silane (SiH0-3X4-1) wherein X represents halogen element, or a combination of two or more thereof, and a dopant gas mixed with the raw mater-ial.  The method comprises steps of;  diluting said mixed gas with rare gas such as helium, neon, argon, etc. or hydrogen in a ratio of the diluting gas to the mixed gas higher than 1:1 in order to control the film forming rate adequately enough to produce a layer including mixed crystalline and amorphous substances; and applying an electric power of a plasma discharge power density higher than about 0.2 W/cm2.
Patent CA-1167600-A (CA)
Inventor: OSWITCH STANLEY
IPC: C08L67/06
Filed: 1981-11-10
Granted: 1984-05-15
Abstract: ABSTRACT OF THE DISCLOSURE        Compositions for producing unsaturated polyester foams comprising sodium borohydride for curing the composition in con-junction with an organic peroxide catalyst, and for producing hydrogen gas as the foaming agent.  The compositions which are simple and safe to prepare produce high quality foams.
Patent CA-1167015-A (CA)
Inventor: SUTTON DONALD W
IPC: A47G33/12
Filed: 1981-12-17
Granted: 1984-05-08
Abstract: ABSTRACT OF THE DISCLOSURE        A Christmas Tree stand for supporting a tree and provid-ing an integral filling means is disclosed.  The stand compris-ses a central container for receiving a base of the tree and clamping means for securing said container and said base.  The container is supported by a plurality of mutually spaced hori-zontal trusses extending outwardly therefrom.  One of said trus-ses mounts a funnel at the distal portion thereof, which funnel is in communication with the interior of said container so that when water is poured into said funnel the container will be filled and said funnel will provide a visual indicator when the container is full.
Patent CA-1174195-A (CA)
Inventor: ACKERMAN ROGER A
IPC: A01K1/12
Filed: 1982-02-04
Granted: 1984-09-11
Abstract: Abstract of the Disclosure A central milking system with electrical units energized by an a.c. voltage source having an earth grounded neutral conductor. Stray current inherently produced in the neutral conductor by neutral-to-earth voltage is prevented from being conducted to the teats of the cow being milked via the flow of milk from the cow by creating a highly electric-insulating path between all bodies or films of milk which extend to the cow and all conductive components which are connected to the neutral conductor.
Patent CA-1174488-A (CA)
Inventor: GARNETT DONALD W
IPC: B23Q11/00
Filed: 1982-03-01
Granted: 1984-09-18
Abstract: ABSTRACT           Automatic means are disclosed to safeguard lead screw driven machines from excessive overloads that occur when machine motion is obstructed.  The lead screw which rotates to produce machine motion is-supported for axial movement, but axial movement is normally resisted by locating springs.  However, the shaft will be caused to move axially or extrude against the spring force when machine movement is obstructed. Friction braking elements are provided to stop the rotation of the lead screw when the shaft moves axially from its normal operating position.
Patent CA-1172387-A (CA)
Inventor: MCCASKILL REX A
IPC: G06F9/06
Filed: 1982-03-17
Granted: 1984-08-07
Abstract: SELECTIVE USE OF RESTORED FILE SETUPS                   ABSTRACT OF THE DISCLOSURE    The specification discloses a method for using stored information about previous file setups to permit portions of the previous file setup to be reconstructed and selectively used for different tasks or for the stored setup to be used for multiple, compatible files.  A specified task to be performed on a file is selected by the operator from a task menu.  The current frame for the task specified is displayed to the operator.  From the displayed frame, the operator requests stored information about a previous file setup from a diskette   Stored information about the previous file setup is interrogated to determine whether the setup contained a current frame and/or frames lower in the hierarchy of the current frame.  If the result of the interrogation is positive, the stored information is further interrogated to determine whether the fields in the previous file setup are compatible with the current file.  If the result of the second interrogation is positive, the stored information is copied into the current frame and/or frames lower in the hierarchy of the current frame to produce an updated setup containing restored frames.
Patent CA-1212958-A (CA)
Inventor: PARG ADOLF
IPC: A01N41/02
Filed: 1982-03-17
Granted: 1986-10-21
Abstract: Abstract of the Disclosure:   Diphenyl ethers of the formula   where Z1 and Z2 are each hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl or alkoxy, Z3 is halogen, nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkyl-sulfonyl or haloalkylsulfonyl, Y is halogen, cyano or nitro, R1 is hydrogen, alkyl, cycloalkyl, alkoxy, halo-alkyl or alkoxyalkyl, R2 is hydrogen, alkyl, acyl or an alkali metal atom and R3 is hydrogen, alkyl or an alkali metal atom , and herbicides containing these compounds.
Patent CA-1189454-A (CA)
Title: Reciprocating internal combustion engine and support  assembly
Inventor: VALEV ASSEN
IPC: F02B77/13
Filed: 1982-03-30
Granted: 1985-06-25
Abstract: Abstract of the Disclosure An engine block includes cylinders, cylinder heads, a crankshaft, connecting rods connected to said crankshafts, a camshaft, camshaft-driving gears operatively connecting said crankshafts to said camshaft, and intake and exhaust manifolds communicating with the interior of said cylinders.  A sheath encloses at least part of said engine block.  Sealing elements connect said sheath to said engine block and insulate against structure-borne sound.  A flywheel is non-rotatably connected to said crankshaft at one end of said engine block.  Power train housing means are disposed at said one end of said engine block and include a flywheel housing which accommodates said flywheel.  The flywheel housing is rigid with said engine block and forms a unit therewith.  The sheath encloses the engine block on all sides and defines an oil chamber around the engine block.         Said sealing elements consist of rings provided at opposite ends of said engine block.  Said unit is carried by and connected to a support by elastic means which insulate against structure-borne sound.